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IIT – JEE Main & Advanced 2017-09-06T12:37:30+00:00

IIT - JEE Main & Advanced

Demo Lectures of IIT - JEE Main & Advanced

NCERT Solutions for Class 9 Science Chapter 3 – Atoms and Molecules

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Atom Atoms are the smallest particles of an element which can take reaction. Size of an atom: Atomic radius is measured in nanometres. Atomic radii of hydrogen atom = 1 × 10–10 m. Molecule It is the [...]

NCERT Solutions for Class 9 Science Chapter 2 – Is Matter Around Us Pure

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Pure Substances Pure substances may be defined as material which contains only one kind of atoms s or molecules. The measure of whether a substance is pure is known as purity. Elements and compounds are pure [...]

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